Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/02/2025, 09:15

General

  • Target

    JaffaCakes118_1fe3ed3876fe887254bd14d3684662dc.exe

  • Size

    881KB

  • MD5

    1fe3ed3876fe887254bd14d3684662dc

  • SHA1

    fd6ed6ee4e51db042951c67a73bc62f0b85e2d62

  • SHA256

    2800ffefab274beaf594de0dd3ba8532638b4978213d55a0cadab148b8f32df7

  • SHA512

    c710073712be256b833e353e2d1d536a2e1b9c30055cee12f5ae1866af5ac38a3cc35bc31fcbff316a5225d8258dfa1f61539c1fa36058a6589c2c42c74789c6

  • SSDEEP

    24576:TbV4yIDvZf7R5q58Pnq1jPfBQbPsovgURBZhS6B8Ta/Lyy:TbV4yIpw8P8jhQbPBRtqTa/u

Malware Config

Extracted

Family

darkcomet

Botnet

ms-dos

C2

pourmoi.zapto.org:2000

pourmoi.zapto.org:200

pourmoi.zapto.org:1604

pourmoi.zapto.org:164

pourmoi.zapto.org:80

Mutex

DC_MUTEX-M5FD2QE

Attributes
  • gencode

    dS$=Gi/U7yGB

  • install

    false

  • offline_keylogger

    true

  • password

    da06101266

  • persistence

    false

rc4.plain

Signatures

  • Darkcomet

    DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

  • Darkcomet family
  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 25 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1fe3ed3876fe887254bd14d3684662dc.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1fe3ed3876fe887254bd14d3684662dc.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1580
    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      C:\Users\Admin\AppData\Local\Temp\svchost.exe
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2696
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2064
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:1708
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3792
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:4884

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\svchost.exe

    Filesize

    1.1MB

    MD5

    d881de17aa8f2e2c08cbb7b265f928f9

    SHA1

    08936aebc87decf0af6e8eada191062b5e65ac2a

    SHA256

    b3a37093609f9a20ad60b85a9fa9de2ba674cba9b5bd687729440c70ba619ca0

    SHA512

    5f23bfb1b8740247b36ed0ab741738c7d4c949736129e767213e321607d1ccd3e3a8428e4ba44bd28a275b5e3f6206285b1a522514b7ef7ea5e698d90a713d34

  • C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat

    Filesize

    50B

    MD5

    b774ae3fb1da087e1f83b4f7b2060e5a

    SHA1

    97eb9be49ac3af9c851c9e1e84e32bfd53e325a8

    SHA256

    adaf4a84b41e410b02e261cfd0fe7739d98647eab73c3badd32ac6e39f26351b

    SHA512

    f75d0f95f7306d26a12b414bfe37b97fbd37546cb3c6e403def7077329ddffb4b45d5c5f0ba0e7bb6d72851d2d691b0a85267beead42f7cbf2e8c3d45a3b4701

  • memory/1580-0-0x00000000754C2000-0x00000000754C3000-memory.dmp

    Filesize

    4KB

  • memory/1580-1-0x00000000754C0000-0x0000000075A71000-memory.dmp

    Filesize

    5.7MB

  • memory/1580-2-0x00000000754C0000-0x0000000075A71000-memory.dmp

    Filesize

    5.7MB

  • memory/1580-15-0x00000000754C0000-0x0000000075A71000-memory.dmp

    Filesize

    5.7MB

  • memory/2696-16-0x00000000025C0000-0x00000000025C1000-memory.dmp

    Filesize

    4KB

  • memory/2696-31-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/2696-10-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/2696-12-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/2696-25-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/2696-26-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/2696-27-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/2696-24-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/2696-7-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/2696-29-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/2696-30-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/2696-14-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/2696-32-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/2696-33-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/2696-34-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/2696-35-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/2696-36-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/2696-37-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/2696-38-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/2696-39-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/2696-40-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/2696-41-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/2696-42-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB